m68k: Atari SCSI revival
SCSI should be working on a TT (but someone should really try!) but causes
trouble on a Falcon (as in: it ate a filesystem of mine) at least when
used concurrently with IDE. I have the notion it's because locking of the
ST-DMA interrupt by IDE is broken in 2.6 (the IDE driver always complains
about trying to release an already-released ST-DMA). Needs more work, but
that's on the IDE or m68k interrupt side rather than SCSI.
Signed-off-by: Michael Schmitz <schmitz@debian.org>
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/scsi/atari_NCR5380.c b/drivers/scsi/atari_NCR5380.c
index 0f920c8..1b4612c 100644
--- a/drivers/scsi/atari_NCR5380.c
+++ b/drivers/scsi/atari_NCR5380.c
@@ -264,7 +264,7 @@
(struct NCR5380_hostdata *)(in)->hostdata
#define HOSTDATA(in) ((struct NCR5380_hostdata *)(in)->hostdata)
-#define NEXT(cmd) ((Scsi_Cmnd *)((cmd)->host_scribble))
+#define NEXT(cmd) ((cmd)->host_scribble)
#define NEXTADDR(cmd) ((Scsi_Cmnd **)&((cmd)->host_scribble))
#define HOSTNO instance->host_no
@@ -716,7 +716,7 @@
printk("NCR5380_print_status: no memory for print buffer\n");
return;
}
- len = NCR5380_proc_info(pr_bfr, &start, 0, PAGE_SIZE, HOSTNO, 0);
+ len = NCR5380_proc_info(instance, pr_bfr, &start, 0, PAGE_SIZE, 0);
pr_bfr[len] = 0;
printk("\n%s\n", pr_bfr);
free_page((unsigned long) pr_bfr);
@@ -878,6 +878,46 @@
}
/*
+ * our own old-style timeout update
+ */
+/*
+ * The strategy is to cause the timer code to call scsi_times_out()
+ * when the soonest timeout is pending.
+ * The arguments are used when we are queueing a new command, because
+ * we do not want to subtract the time used from this time, but when we
+ * set the timer, we want to take this value into account.
+ */
+
+int atari_scsi_update_timeout(Scsi_Cmnd * SCset, int timeout)
+{
+ int rtn;
+
+ /*
+ * We are using the new error handling code to actually register/deregister
+ * timers for timeout.
+ */
+
+ if (!timer_pending(&SCset->eh_timeout)) {
+ rtn = 0;
+ } else {
+ rtn = SCset->eh_timeout.expires - jiffies;
+ }
+
+ if (timeout == 0) {
+ del_timer(&SCset->eh_timeout);
+ SCset->eh_timeout.data = (unsigned long) NULL;
+ SCset->eh_timeout.expires = 0;
+ } else {
+ if (SCset->eh_timeout.data != (unsigned long) NULL)
+ del_timer(&SCset->eh_timeout);
+ SCset->eh_timeout.data = (unsigned long) SCset;
+ SCset->eh_timeout.expires = jiffies + timeout;
+ add_timer(&SCset->eh_timeout);
+ }
+ return rtn;
+}
+
+/*
* Function : int NCR5380_queue_command (Scsi_Cmnd *cmd,
* void (*done)(Scsi_Cmnd *))
*
@@ -902,7 +942,7 @@
Scsi_Cmnd *tmp;
int oldto;
unsigned long flags;
- extern int update_timeout(Scsi_Cmnd * SCset, int timeout);
+ // extern int update_timeout(Scsi_Cmnd * SCset, int timeout);
#if (NDEBUG & NDEBUG_NO_WRITE)
switch (cmd->cmnd[0]) {
@@ -978,9 +1018,9 @@
* alter queues and touch the lock.
*/
if (!IS_A_TT()) {
- oldto = update_timeout(cmd, 0);
+ oldto = atari_scsi_update_timeout(cmd, 0);
falcon_get_lock();
- update_timeout(cmd, oldto);
+ atari_scsi_update_timeout(cmd, oldto);
}
if (!(hostdata->issue_queue) || (cmd->cmnd[0] == REQUEST_SENSE)) {
LIST(cmd, hostdata->issue_queue);
@@ -1435,7 +1475,7 @@
local_irq_restore(flags);
/* Wait for arbitration logic to complete */
-#if NCR_TIMEOUT
+#if defined(NCR_TIMEOUT)
{
unsigned long timeout = jiffies + 2*NCR_TIMEOUT;